Lovely market with a fantastic selection of ready-made meals. If you're a tourist in Montreal looking for this store, note that you do have to enter the upper section of the Metro building... there's a food court and plenty of other shops inside.
I speak English, and had no issues with the cashiers, who did their best to communicate with me despite my lack of French. :) No complaints. The store is clean, had a fantastic selection, and the staff were just fine. I'll definitely go back next time I'm in Montreal.